Stop mechanism for embroidering-machines.



J. A. GROEBLI.

STOP MECHANISM FOR. EMBROIDERING MACHINES.

APPLIUATION FILED AUG.5.1903.

Patented Nov. 3, 1908'.

3 SHEETS-SHEBT 2.

J. A. GROEBLI.

STOP MECHANISM FOB. EMBROIDBBING MAGHINES.

APPLIOATION FILED 10.5, 1903.

902,81 5. Patented Nov. 3, 1908.

3 SHEETS-SHEET 3.

I T LL A TTORNEW UNITED STATES PATENT OFFICE.

JOSEPH A. GROEBLI, OF NEW YORK, N. Y., ASSIGNOR TO THE KURSHEEDT MANUFACTURING COMPANY, or NEW YORK, N. Y.,

STOP MECHANISM FOR EMBROIDEBING-MACHINES.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed August 5, 1908. Serial No. 188,278.

To all whom it may concern:

Be it known that I, JOSEPH A: GROEBLI, a citizen of the United States, residing in the borough of Manhattan, city, county, and State of New York, have invented certain new and useful 1m rovements in Stop Mechanism for Embroid erin -Machin.es, of which the following is a s eci cation.

My invention re ates to sto mechanism for embroidering machines and as for its object to roduce a mechanism in which, if the embroi ering or other machine should by any chance, initiate on the machine the operation of individual functionat'ing mechanism the operations of which would beliable to interfere with each other when in action simultaneously, that the machine will be automatically stopped so as to prevent such interference and breakage.

My invention will be described with particular reference to a jacquard mechanism for controlling embroidermg machines although it will be understood that I do not thereby mean to limit mvself to the mechanism shown nor to the application of the mechanism to embroidering machines.

The present embodiment of my invention is additional to and forms part of a jac uard mechanism shown and described in S. Letters Patent No. 528632, ranted to the Kursheedt Manufacturing Co, Nov. 6th, 1894, as my assignee. In this patent I have shown a jacquard mechanism for moving the fabric frame on an embroidering machine.

At subsequent dates, I patented a series of machines by which the operation of mechanisms executing special functions in the operl ation of elnbrolderlng machines could be 1111- 1 tiated from the jacquard. For instance, in U. S. Letters Patent No. 556143, dated March 10th, 1896, I have shown means for erforating a fabric stretched upon the famour frame of an embroidcring machine, the said means being initiated and controlled from the jac uard. In U. S. Letters Paton t No. 556144, have shown means for adjust ing the thread tension of an em roiderin; machine, which means is also ini, 'ated and controlled from the jacquard. In U. S. Letters Patent No. 556145, dated Iarch 10th 1896, I'have shown means for co nectirlg the embro ering mechanism to and disconnecting it rom its operating mechanism, which means is also initiated and controlled from the jacquard. In U. S. Letters Patent No.

593208, dated Nov. 9th, 1897, I have shown means for disconnecting the embroidering machine operating mechanism from its driving mechanism so that operations other than the needle stitching operations can be effected during such stoppage, which apparatus is initiatedand controlled from the jacquard. In U. S. Letters Patent No. 607848, dated July 26th, 1898, I have shown means for forming festoons or scallops in the embroidering operation, which means is initiated and controlled from the jacquard. In U. S. Letters Patent No. 618458, dated Jan. 31st, 1899, I have shown means whereby either a bore point or a stupfel is thrown into operation, which mechanism is initiated and controlled from' the jacquard. There are other Letters Patent showin means for automatically controlling mechanism for executing other functions, which I'have not herein recited. All of these mechanisms are termed by me special or extra function mechanisms and it is obvious that there are other functions which ma be designated as special functions, inclu ing the means for affecting the control and movement of the fabric frame.

As before stated, the ()ject of my invention is to prevent the initiating or setting in 0 eration of different sets of mechanism in I t e machine which would interfere with each 1 other. In the accompanying drawing, I have shown one apparatus for effecting such 4 result and describe the same by way of exam le.

11 the drawings:Figure I is a plan View of the apparatus which may be considered as an addition to the jacquard mechanism shown in L'. S. Letters Patent No. 528632, dated Nov. 6th, 1894, and herein referred to, and is operative in the present instance to set a stop-motion in action to stop the jacl quard and consequently stop the embroidering machine, Fig. II is an enlarged detail View of the stoppin mechanism including i the means connected to the special function 1 mechanism for throwi the stop-motion mechanism into action w ich means I shall hereinafter term detector bars, Fig. III is 'a section on the line I I-III of Fi II, Fig. IV is a lan view similar to Fig. certain etector bars omitted and the. parts in a different position, Fig. V is an nd view of some the parts shown in if 1V, Fig. VI is a similar view showing thiparts in a showing different position, Fig. VII is a plan view similar to Fig. I showing certain detector bars and omitting others, ig. VIII is an end view showing the parts in a certain position, Fig. IX is a similar view of the same parts showing them in a different position.

In the drawings (1. indicates a rod which runs to the stop-motion mechanism of the 'ac uard. That is to say to the tail of the etc 42 shown in Fig. I of U. S. Letters Patent No. 607234, to Groebli, dated July 12, 1898. It corresponds in function to the rod (1. shown in said figure. This rod is rovided with an adjustable collar 6, against which an abutment c, on the stop lever d, is adapted to rest. This stop lever d, is carried upon a suitable shaft e, and is rovided with a cam face (Figs. II and II.) In Fig. III the dotted line position of the lever is the normal position, the full line position being the abnormal or sto position.

Sliding in a suitab e frame g, supported by the frame work of the machine are detector bars Nos. 1, 2, 3, 4, 5, 6. These detector bars are connected to mechanism for initiating and controlling certain s ecial functions for instance, detector bar 0. 1 is connected to the scallop attachment, No. 2 to the shuttle chan ing mechanism, No. 3 to the mechanism or disconnecting the embroidering machine when extra functions are to be erformed, (for instance, such as boring) o. 4 is connected to the mechanism for effecting the adjustment of the bore points, No. 5 is connected to the stupfel attachment, and No. 6 is connected to t e bore point attachment.

I have shown diagrammatically in Figs. IV to IX the directly acting means where y the liftin of the detector bars is effected. Each of t e special function mechanisms is provided with a suitable lifter for liftin the detector bars belonging to the mecha ism which would interfere with the mechanism actuating that articular lifter. For instance, in Figs. I V and VI, I have shown a hub K, provided with a cam '11, the hub K of the three armed lever shown in Fig. 7 of U. S. Letters Patent No. 593208, to Gloebli, dated Nov. 9, 189 7. This cam .11, on hub K, o crates upon a lifter 7', ivoted at k, whlch l' ter is ada ted to raise etector bars Nos. 1 and 2, whic the scallop attachment and the shuttle changing attachment. Thecam i, also operates .u on a lifter l pivoted at m, and adapted to lift detector bars Nos. 5 and 6, which represent the stupfel attachment and the bore attachment.

In F' V the parts are shown in the positions w ich they assume when the embroidering machine is disconnected and in Fig. VI the parts fane shown as in the position they assume when the embroidering machine is connected. The member K in the present detector bars are connected to.

case is the same member similarly lettered in Patent No. 593208 referred to, and it is the lever carrying member which is rocked to set a part of the machine into action. Fig. V shows how the cam 71, is positioned when the member K throws the embroidering mechanism out of action while Fig. VI shows its position when the member K in this case, and

in the patent referred to, moves the levers to throw the embroidering mechanism into act1on.'

Referring for the resent to the position shown in Flg. V, the etector bars Nos. 1 and 2 being in their elevated position, if the function represented by either were to go into effect that bar would be given a forward movement thereby swinging the lever d, on its ivot or shaft and stopping the machine. he same is true of the position shown in Fig. VI wherein the embroidering machine is disconnected and the stupfel and bore attachment detector bars are in position to effect the sto ing of the machine.

In Fi s. II, VIII and IX, I have shown the details of the detector bars and their appurtenant mechansim cooperating with the stupfel and bore attachment mechanisms. In these figures the detector bars Nos. 3, 4, and 5 are alone involved, these being, .respectively, the embroidering machine disconnecting mechanism, the adjustment of the bore oint and the stupfel attachment. In these gures, 12 indicates a suitable movable part of the machine connected to the stupfel apparatus. This part 12 in the present instance, is the lower end of the rack or settin bar 12 of Patent No. 717843, to Groeb i, dated Jan. 6, 1903. The part 12 acts upon the cam p, carried upon an arm q, pivoted at r, and provided with a lifter s, which operates upon detector bar No. 3, which is connected to the mechanism for disconnecting the embroidering machine. In Fi VIII, the stupfel is outof operation and in ig. IX it is in operation, its lifter holding detector bar No. 3 1n its elevated position so that if the embroidering machine should by any chance be connected up, such for 'instance, as by a tear in the jacquard card or paper, the machine will be immediately stopped. The bore attachment mechanism an its cooperating mechanism swing the arm a, havin a in a which acts on the cam 10 to which t e ifter X ivoted at r is con nected. The lifter a: is a apted to lift the detectorbarsNos. 3, 4, and 5 so that if anyof the functions represented by any of these three bars is initiated while the bore oint attachment is in action the machine w' l he stop pcd;

Fig. VIII shows the position assumed by the parts when the bore point attachment is in action and Fig. IX shows the position of the parts when the bore point attachment is out of action.

The lever '10 is a part of the bore mechanism and when it rocks back and forth on its ful crum v in conjunction with the setting of the bore mechanism into and out of action, it

rocks the member w to operate the lifter X. 1

This lever u, or any equivalent device may be operated in any suitable way so that it produces an action on the desired lifter. In the particular construction to which this le ver a belongs, the pin t, is forced by the j acquard into engagement with the lever u and a continuously oscillating lever, (not shown) whereby the lever 'u is moved to either of its positions shown in Figs. VIII and IX.

The machine under consideration operates as follows: If the lifter in corresponding to any function mechanism is actuated to start to osition said mechanism for action, coupled or action or in anywise initiate the function thereby represented the detector bar corre sponding to such function is thrust forward into the position shown at 3 in Fig. II. This is before the said mechanism is coupled up or otherwise put in position or condition for action. When the mechanism starts to operate it will lift up the bar or bars of mechanism which conflict with it in action. Should any of these mechanisms be in action, their bars will be in their forward {full linel positions and raising its detector bar will cause the same to traverse the face of the cam d and swing the arm to stop the machine. If the interfering f unctionating mechanism is not in action its bar will in its upward movement clear the lever d. But should the interfering mechanism he put in action while the first mentioned functionating mechanism is in action it will be thrust forward and, sriking the lever (I, stop the machine. As soon as the operation of the o )erating functionating mechanism ceases the bars will be restored to position by a reverse movement. Should two interfering mechanisms be set in operation about simultaneously each will thrust its detector bar forward (full line position) but on the lower level, and raise the bar of the other interfering mechanism. Thus both bars will rise together and one or both stop the machine by traveling over the face f of the arm (I.

In the claims I have em loyed the terms interfere, interfering, etc. l do not use these terms merely in the sense of indicating that the mechanisms are liable to strike each other in their movement but desire the terms to be used also in the broad sense ofinterference in the harmonious production of the finished product, to wit, the embroidery, where there is no actual, physical or mechanical interference.

Having described my invention, what I claim is:

1. In an embroiderin machine, the com bination of an embroi ering apparatus including a jacquard mechanism and a lurality of individual mechanisms eontro led by said jac uard mechanism and operating to secure dif 'erent functions and which mechanisms are liable to interfere with each other if in operation at the same time, with means for stopping said embroidering apparatus when two or more individual mechanisms are liable to interfere.

2. In an embroidering mechanism the combination of an embroidering means, a jacquard device with a plurality of separately operating mechanisms executin different functions which mechanisms are liable to interfere with each other if in operation at the same time and which mechanisms are located to operate at the same point and initiated from the uard device and means for reventing inter 'crence between the said nice anisms.

3. In an embroidering mechanism, the combination of a series of individual mechanisms for effecting different functions, parts of which mechanisms are liable to interfere with other individual mechanisms should both individual mechanisms be operated at the same time, a stop motion mechanism and automatic means for operating the stop-mo tion mechanism when any two of such mechanisms which are liable to intcrfere operate at the same time.

4. The combination in an embroidering mechanism of a series of special function mechanisms ada ted to execute different functions and so ocatcd as to partly occupy the same space when in action, a stop-motion mechanism and means connected to the special function mechanisms for actuating the stop-motion mechanism and means connected to the various special function mechanisms for positioning the stop-motion actuating mechanism of the special function mechanism which will interfere therewith.

5. In an embroidering mechanism the combination of pattern mechanism, of pattern mechanism initiated special function mechanisms, stop motion mechanism sto ping the machine through the'pattern mechanism and means for rendering the said stop motion mechanism active when interference between two special function mechanisms is about to occur.

6. In an embroidering mechanism the combination of pattern mechanism, of pattern mechanism initiated special function mechanisms havin or operatingparts 0 located as to be liabfia to interfere one with the other if simultaneously operated, a stop motion mechanism and connections between the special function mechanisms and the stop motion mechanism for actuating the stop motion mechanism upon the conjoint action of two interfering mechanisms.

7. In an embroidering machine the combination oi a series of special function mech anisms having or operating parts so located as to be liable to interfere one with the other 1, fecting t e operation of the stop motion 4 scams if simultaneously operated, pattern mechanism for initiating their operation, a stop mo tion mechanism and means for actuating the stop motion mechanism from the pattern mechanism upon the conjoint action of interfering functionating mechanisms.

H. in an einbroirlering machine the cornhination of a series of special function rneclranisms having or operating parts so located as to be liable to interfere one with the other if simultaneously operated, a stop motion mechanism for th var special function mechanisms and mean t mpcrating with the various s ecial function mechanisms for el' mechanism from the mechanism or mechanisms which are liable to interfere when in aetion simultaneously.

9. In an enibroiderin machine the combination of mechanisms %0 functions so located as to be liable to interfcre with each other when in 0 eration, of operating means for the same lia le to operate the same simultaneously and automatically acting means for preventing the simultaneous action of interfering mechanisms.

JOSEPH A. GROEBLI.

\Vitnesses:

Mam MCELLIGOTT, A. H. Kunsnnnn'r.

r executing special 

